chore: bump undici from 6.21.2 to 6.21.3 in /site (#20075)

Bumps [undici](https://github.com/nodejs/undici) from 6.21.2 to 6.21.3.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/nodejs/undici/releases">undici's
releases</a>.</em></p>
<blockquote>
<h2>v6.21.3</h2>
<h2>What's Changed</h2>
<ul>
<li>[Backport v6.x] append crlf to formdata body by <a
href="https://github.com/github-actions"><code>@​github-actions</code></a>
in <a
href="https://redirect.github.com/nodejs/undici/pull/4210">nodejs/undici#4210</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/nodejs/undici/compare/v6.21.2...v6.21.3">https://github.com/nodejs/undici/compare/v6.21.2...v6.21.3</a></p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/nodejs/undici/commit/da0e823ac0e89390256d61c429df0cf236afb79e"><code>da0e823</code></a>
Bumped v6.21.4</li>
<li><a
href="https://github.com/nodejs/undici/commit/dbbe0a2d5004cd7b6016e52736f59ce37bdb1556"><code>dbbe0a2</code></a>
append crlf to formdata body (<a
href="https://redirect.github.com/nodejs/undici/issues/3625">#3625</a>)
(<a
href="https://redirect.github.com/nodejs/undici/issues/4210">#4210</a>)</li>
<li>See full diff in <a
href="https://github.com/nodejs/undici/compare/v6.21.2...v6.21.3">compare
view</a></li>
</ul>
</details>
<br />


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site/package.json

@@ -116,7 +116,7 @@
 		"tzdata": "1.0.46",
 		"ua-parser-js": "1.0.40",
 		"ufuzzy": "npm:@leeoniya/ufuzzy@1.0.10",
-		"undici": "6.21.2",
+		"undici": "6.21.3",
 		"unique-names-generator": "4.7.1",
 		"uuid": "9.0.1",
 		"websocket-ts": "2.2.1",

site/pnpm-lock.yaml

@@ -263,8 +263,8 @@ importers:
         specifier: npm:@leeoniya/ufuzzy@1.0.10
         version: '@leeoniya/ufuzzy@1.0.10'
       undici:
-        specifier: 6.21.2
-        version: 6.21.2
+        specifier: 6.21.3
+        version: 6.21.3
       unique-names-generator:
         specifier: 4.7.1
         version: 4.7.1
@@ -6069,8 +6069,8 @@ packages:
   undici-types@6.20.0:
     resolution: {integrity: sha512-Ny6QZ2Nju20vw1SRHe3d9jVu6gJ+4e3+MMpqu7pqE5HT6WsTSlce++GQmK5UXS8mzV8DSYHrQH+Xrf2jVcuKNg==, tarball: https://registry.npmjs.org/undici-types/-/undici-types-6.20.0.tgz}
 
-  undici@6.21.2:
-    resolution: {integrity: sha512-uROZWze0R0itiAKVPsYhFov9LxrPMHLMEQFszeI2gCN6bnIIZ8twzBCJcN2LJrBBLfrP0t1FW0g+JmKVl8Vk1g==, tarball: https://registry.npmjs.org/undici/-/undici-6.21.2.tgz}
+  undici@6.21.3:
+    resolution: {integrity: sha512-gBLkYIlEnSp8pFbT64yFgGE6UIB9tAkhukC23PmMDCe5Nd+cRqKxSjw5y54MK2AZMgZfJWMaNE4nYUHgi1XEOw==, tarball: https://registry.npmjs.org/undici/-/undici-6.21.3.tgz}
     engines: {node: '>=18.17'}
 
   unicorn-magic@0.1.0:
@@ -12934,7 +12934,7 @@ snapshots:
 
   undici-types@6.20.0: {}
 
-  undici@6.21.2: {}
+  undici@6.21.3: {}
 
   unicorn-magic@0.1.0: {}